1 /******************************************************************************
2 * rtl871x_ioctl_set.c
3 *
4 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
5 * Linux device driver for RTL8192SU
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
19 *
20 * Modifications for inclusion into the Linux staging tree are
21 * Copyright(c) 2010 Larry Finger. All rights reserved.
22 *
23 * Contact information:
24 * WLAN FAE <wlanfae@realtek.com>
25 * Larry Finger <Larry.Finger@lwfinger.net>
26 *
27 ******************************************************************************/
28
29 #define _RTL871X_IOCTL_SET_C_
30
31 #include "osdep_service.h"
32 #include "drv_types.h"
33 #include "rtl871x_ioctl_set.h"
34 #include "usb_osintf.h"
35 #include "usb_ops.h"
36
37 #define IS_MAC_ADDRESS_BROADCAST(addr) \
38 ( \
39 ((addr[0] == 0xff) && (addr[1] == 0xff) && \
40 (addr[2] == 0xff) && (addr[3] == 0xff) && \
41 (addr[4] == 0xff) && (addr[5] == 0xff)) ? true : false \
42 )
43
validate_ssid(struct ndis_802_11_ssid * ssid)44 static u8 validate_ssid(struct ndis_802_11_ssid *ssid)
45 {
46 u8 i;
47
48 if (ssid->SsidLength > 32)
49 return false;
50 for (i = 0; i < ssid->SsidLength; i++) {
51 /* wifi, printable ascii code must be supported */
52 if (!((ssid->Ssid[i] >= 0x20) && (ssid->Ssid[i] <= 0x7e)))
53 return false;
54 }
55 return true;
56 }
57
do_join(struct _adapter * padapter)58 static u8 do_join(struct _adapter *padapter)
59 {
60 struct list_head *plist, *phead;
61 u8 *pibss = NULL;
62 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
63 struct __queue *queue = &(pmlmepriv->scanned_queue);
64
65 phead = &queue->queue;
66 plist = phead->next;
67 pmlmepriv->cur_network.join_res = -2;
68 pmlmepriv->fw_state |= _FW_UNDER_LINKING;
69 pmlmepriv->pscanned = plist;
70 pmlmepriv->to_join = true;
71
72 /* adhoc mode will start with an empty queue, but skip checking */
73 if (!check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) &&
74 list_empty(&queue->queue)) {
75 if (pmlmepriv->fw_state & _FW_UNDER_LINKING)
76 pmlmepriv->fw_state ^= _FW_UNDER_LINKING;
77 /* when set_ssid/set_bssid for do_join(), but scanning queue
78 * is empty we try to issue sitesurvey firstly
79 */
80 if (!pmlmepriv->sitesurveyctrl.traffic_busy)
81 r8712_sitesurvey_cmd(padapter, &pmlmepriv->assoc_ssid);
82 return true;
83 } else {
84 int ret;
85
86 ret = r8712_select_and_join_from_scan(pmlmepriv);
87 if (ret == _SUCCESS)
88 mod_timer(&pmlmepriv->assoc_timer,
89 jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
90 else {
91 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
92 /* submit r8712_createbss_cmd to change to an
93 * ADHOC_MASTER pmlmepriv->lock has been
94 * acquired by caller...
95 */
96 struct wlan_bssid_ex *pdev_network =
97 &(padapter->registrypriv.dev_network);
98 pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE;
99 pibss = padapter->registrypriv.dev_network.
100 MacAddress;
101 memcpy(&pdev_network->Ssid,
102 &pmlmepriv->assoc_ssid,
103 sizeof(struct ndis_802_11_ssid));
104 r8712_update_registrypriv_dev_network(padapter);
105 r8712_generate_random_ibss(pibss);
106 if (r8712_createbss_cmd(padapter) != _SUCCESS)
107 return false;
108 pmlmepriv->to_join = false;
109 } else {
110 /* can't associate ; reset under-linking */
111 if (pmlmepriv->fw_state & _FW_UNDER_LINKING)
112 pmlmepriv->fw_state ^=
113 _FW_UNDER_LINKING;
114 /* when set_ssid/set_bssid for do_join(), but
115 * there are no desired bss in scanning queue
116 * we try to issue sitesurvey first
117 */
118 if (!pmlmepriv->sitesurveyctrl.traffic_busy)
119 r8712_sitesurvey_cmd(padapter,
120 &pmlmepriv->assoc_ssid);
121 }
122 }
123 }
124 return true;
125 }
126
r8712_set_802_11_bssid(struct _adapter * padapter,u8 * bssid)127 u8 r8712_set_802_11_bssid(struct _adapter *padapter, u8 *bssid)
128 {
129 unsigned long irqL;
130 u8 status = true;
131 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
132
133 if (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid)) {
134 status = false;
135 return status;
136 }
137 spin_lock_irqsave(&pmlmepriv->lock, irqL);
138 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY |
139 _FW_UNDER_LINKING)) {
140 status = check_fwstate(pmlmepriv, _FW_UNDER_LINKING);
141 goto _Abort_Set_BSSID;
142 }
143 if (check_fwstate(pmlmepriv,
144 _FW_LINKED | WIFI_ADHOC_MASTER_STATE)) {
145 if (!memcmp(&pmlmepriv->cur_network.network.MacAddress, bssid,
146 ETH_ALEN)) {
147 if (!check_fwstate(pmlmepriv, WIFI_STATION_STATE))
148 goto _Abort_Set_BSSID; /* driver is in
149 * WIFI_ADHOC_MASTER_STATE */
150 } else {
151 r8712_disassoc_cmd(padapter);
152 if (check_fwstate(pmlmepriv, _FW_LINKED))
153 r8712_ind_disconnect(padapter);
154 r8712_free_assoc_resources(padapter);
155 if ((check_fwstate(pmlmepriv,
156 WIFI_ADHOC_MASTER_STATE))) {
157 _clr_fwstate_(pmlmepriv,
158 WIFI_ADHOC_MASTER_STATE);
159 set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
160 }
161 }
162 }
163 memcpy(&pmlmepriv->assoc_bssid, bssid, ETH_ALEN);
164 pmlmepriv->assoc_by_bssid = true;
165 status = do_join(padapter);
166 goto done;
167 _Abort_Set_BSSID:
168 done:
169 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
170 return status;
171 }
172
r8712_set_802_11_ssid(struct _adapter * padapter,struct ndis_802_11_ssid * ssid)173 void r8712_set_802_11_ssid(struct _adapter *padapter,
174 struct ndis_802_11_ssid *ssid)
175 {
176 unsigned long irqL;
177 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
178 struct wlan_network *pnetwork = &pmlmepriv->cur_network;
179
180 if (!padapter->hw_init_completed)
181 return;
182 spin_lock_irqsave(&pmlmepriv->lock, irqL);
183 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY | _FW_UNDER_LINKING)) {
184 check_fwstate(pmlmepriv, _FW_UNDER_LINKING);
185 goto _Abort_Set_SSID;
186 }
187 if (check_fwstate(pmlmepriv, _FW_LINKED | WIFI_ADHOC_MASTER_STATE)) {
188 if ((pmlmepriv->assoc_ssid.SsidLength == ssid->SsidLength) &&
189 (!memcmp(&pmlmepriv->assoc_ssid.Ssid, ssid->Ssid,
190 ssid->SsidLength))) {
191 if (!check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
192 if (!r8712_is_same_ibss(padapter,
193 pnetwork)) {
194 /* if in WIFI_ADHOC_MASTER_STATE or
195 * WIFI_ADHOC_STATE, create bss or
196 * rejoin again
197 */
198 r8712_disassoc_cmd(padapter);
199 if (check_fwstate(pmlmepriv,
200 _FW_LINKED))
201 r8712_ind_disconnect(padapter);
202 r8712_free_assoc_resources(padapter);
203 if (check_fwstate(pmlmepriv,
204 WIFI_ADHOC_MASTER_STATE)) {
205 _clr_fwstate_(pmlmepriv,
206 WIFI_ADHOC_MASTER_STATE);
207 set_fwstate(pmlmepriv,
208 WIFI_ADHOC_STATE);
209 }
210 } else {
211 goto _Abort_Set_SSID; /* driver is in
212 * WIFI_ADHOC_MASTER_STATE */
213 }
214 }
215 } else {
216 r8712_disassoc_cmd(padapter);
217 if (check_fwstate(pmlmepriv, _FW_LINKED))
218 r8712_ind_disconnect(padapter);
219 r8712_free_assoc_resources(padapter);
220 if (check_fwstate(pmlmepriv,
221 WIFI_ADHOC_MASTER_STATE)) {
222 _clr_fwstate_(pmlmepriv,
223 WIFI_ADHOC_MASTER_STATE);
224 set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
225 }
226 }
227 }
228 if (padapter->securitypriv.btkip_countermeasure)
229 goto _Abort_Set_SSID;
230 if (!validate_ssid(ssid))
231 goto _Abort_Set_SSID;
232 memcpy(&pmlmepriv->assoc_ssid, ssid, sizeof(struct ndis_802_11_ssid));
233 pmlmepriv->assoc_by_bssid = false;
234 do_join(padapter);
235 goto done;
236 _Abort_Set_SSID:
237 done:
238 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
239 }
240
r8712_set_802_11_infrastructure_mode(struct _adapter * padapter,enum NDIS_802_11_NETWORK_INFRASTRUCTURE networktype)241 void r8712_set_802_11_infrastructure_mode(struct _adapter *padapter,
242 enum NDIS_802_11_NETWORK_INFRASTRUCTURE networktype)
243 {
244 unsigned long irqL;
245 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
246 struct wlan_network *cur_network = &pmlmepriv->cur_network;
247 enum NDIS_802_11_NETWORK_INFRASTRUCTURE *pold_state =
248 &(cur_network->network.InfrastructureMode);
249
250 if (*pold_state != networktype) {
251 spin_lock_irqsave(&pmlmepriv->lock, irqL);
252 if (check_fwstate(pmlmepriv, _FW_LINKED) ||
253 (*pold_state == Ndis802_11IBSS))
254 r8712_disassoc_cmd(padapter);
255 if (check_fwstate(pmlmepriv,
256 _FW_LINKED | WIFI_ADHOC_MASTER_STATE))
257 r8712_free_assoc_resources(padapter);
258 if (check_fwstate(pmlmepriv, _FW_LINKED) ||
259 (*pold_state == Ndis802_11Infrastructure) ||
260 (*pold_state == Ndis802_11IBSS)) {
261 /* will clr Linked_state before this function,
262 * we must have checked whether issue dis-assoc_cmd or
263 * not */
264 r8712_ind_disconnect(padapter);
265 }
266 *pold_state = networktype;
267 /* clear WIFI_STATION_STATE; WIFI_AP_STATE; WIFI_ADHOC_STATE;
268 * WIFI_ADHOC_MASTER_STATE */
269 _clr_fwstate_(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE |
270 WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE);
271 switch (networktype) {
272 case Ndis802_11IBSS:
273 set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
274 break;
275 case Ndis802_11Infrastructure:
276 set_fwstate(pmlmepriv, WIFI_STATION_STATE);
277 break;
278 case Ndis802_11APMode:
279 set_fwstate(pmlmepriv, WIFI_AP_STATE);
280 break;
281 case Ndis802_11AutoUnknown:
282 case Ndis802_11InfrastructureMax:
283 break;
284 }
285 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
286 }
287 }
288
r8712_set_802_11_disassociate(struct _adapter * padapter)289 u8 r8712_set_802_11_disassociate(struct _adapter *padapter)
290 {
291 unsigned long irqL;
292 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
293
294 spin_lock_irqsave(&pmlmepriv->lock, irqL);
295 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
296 r8712_disassoc_cmd(padapter);
297 r8712_ind_disconnect(padapter);
298 r8712_free_assoc_resources(padapter);
299 }
300 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
301 return true;
302 }
303
r8712_set_802_11_bssid_list_scan(struct _adapter * padapter)304 u8 r8712_set_802_11_bssid_list_scan(struct _adapter *padapter)
305 {
306 struct mlme_priv *pmlmepriv = NULL;
307 unsigned long irqL;
308 u8 ret = true;
309
310 if (!padapter)
311 return false;
312 pmlmepriv = &padapter->mlmepriv;
313 if (!padapter->hw_init_completed)
314 return false;
315 spin_lock_irqsave(&pmlmepriv->lock, irqL);
316 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY | _FW_UNDER_LINKING) ||
317 pmlmepriv->sitesurveyctrl.traffic_busy) {
318 /* Scan or linking is in progress, do nothing. */
319 ret = (u8)check_fwstate(pmlmepriv, _FW_UNDER_SURVEY);
320 } else {
321 r8712_free_network_queue(padapter);
322 ret = r8712_sitesurvey_cmd(padapter, NULL);
323 }
324 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
325 return ret;
326 }
327
r8712_set_802_11_authentication_mode(struct _adapter * padapter,enum NDIS_802_11_AUTHENTICATION_MODE authmode)328 u8 r8712_set_802_11_authentication_mode(struct _adapter *padapter,
329 enum NDIS_802_11_AUTHENTICATION_MODE authmode)
330 {
331 struct security_priv *psecuritypriv = &padapter->securitypriv;
332 u8 ret;
333
334 psecuritypriv->ndisauthtype = authmode;
335 if (psecuritypriv->ndisauthtype > 3)
336 psecuritypriv->AuthAlgrthm = 2; /* 802.1x */
337 if (r8712_set_auth(padapter, psecuritypriv) == _SUCCESS)
338 ret = true;
339 else
340 ret = false;
341 return ret;
342 }
343
r8712_set_802_11_add_wep(struct _adapter * padapter,struct NDIS_802_11_WEP * wep)344 u8 r8712_set_802_11_add_wep(struct _adapter *padapter,
345 struct NDIS_802_11_WEP *wep)
346 {
347 sint keyid;
348 struct security_priv *psecuritypriv = &padapter->securitypriv;
349
350 keyid = wep->KeyIndex & 0x3fffffff;
351 if (keyid >= WEP_KEYS)
352 return false;
353 switch (wep->KeyLength) {
354 case 5:
355 psecuritypriv->PrivacyAlgrthm = _WEP40_;
356 break;
357 case 13:
358 psecuritypriv->PrivacyAlgrthm = _WEP104_;
359 break;
360 default:
361 psecuritypriv->PrivacyAlgrthm = _NO_PRIVACY_;
362 break;
363 }
364 memcpy(psecuritypriv->DefKey[keyid].skey, &wep->KeyMaterial,
365 wep->KeyLength);
366 psecuritypriv->DefKeylen[keyid] = wep->KeyLength;
367 psecuritypriv->PrivacyKeyIndex = keyid;
368 if (r8712_set_key(padapter, psecuritypriv, keyid) == _FAIL)
369 return false;
370 return _SUCCESS;
371 }
372